Zend\Code\Generator\ClassGenerator::addPropertyFromGenerator PHP Method

    public function addPropertyFromGenerator(PropertyGenerator $property)
    {
        $propertyName = $property->getName();
        if (isset($this->properties[$propertyName])) {
            throw new Exception\InvalidArgumentException(sprintf('A property by name %s already exists in this class.', $propertyName));
        }
        // backwards compatibility
        // @todo remove this on next major version
        if ($property->isConst()) {
            return $this->addConstantFromGenerator($property);
        }
        $this->properties[$propertyName] = $property;
        return $this;
    }

 /**
  * {@inheritDoc}
  */
 public function generate(ReflectionClass $originalClass, ClassGenerator $classGenerator)
 {
     $interfaces = array('ProxyManager\\Proxy\\GhostObjectInterface');
     $publicProperties = new PublicPropertiesMap($originalClass);
     $publicPropsDefaults = new PublicPropertiesDefaults($originalClass);
     if ($originalClass->isInterface()) {
         $interfaces[] = $originalClass->getName();
     } else {
         $classGenerator->setExtendedClass($originalClass->getName());
     }
     $classGenerator->setImplementedInterfaces($interfaces);
     $classGenerator->addPropertyFromGenerator($initializer = new InitializerProperty());
     $classGenerator->addPropertyFromGenerator($initializationTracker = new InitializationTracker());
     $classGenerator->addPropertyFromGenerator($publicProperties);
     $classGenerator->addPropertyFromGenerator($publicPropsDefaults);
     $init = new CallInitializer($initializer, $publicPropsDefaults, $initializationTracker);
     $classGenerator->addMethodFromGenerator($init);
     foreach (ProxiedMethodsFilter::getProxiedMethods($originalClass) as $method) {
         $classGenerator->addMethodFromGenerator(LazyLoadingMethodInterceptor::generateMethod(new MethodReflection($method->getDeclaringClass()->getName(), $method->getName()), $initializer, $init));
     }
     $classGenerator->addMethodFromGenerator(new Constructor($originalClass, $initializer));
     $classGenerator->addMethodFromGenerator(new MagicGet($originalClass, $initializer, $init, $publicProperties));
     $classGenerator->addMethodFromGenerator(new MagicSet($originalClass, $initializer, $init, $publicProperties));
     $classGenerator->addMethodFromGenerator(new MagicIsset($originalClass, $initializer, $init, $publicProperties));
     $classGenerator->addMethodFromGenerator(new MagicUnset($originalClass, $initializer, $init, $publicProperties));
     $classGenerator->addMethodFromGenerator(new MagicClone($originalClass, $initializer, $init));
     $classGenerator->addMethodFromGenerator(new MagicSleep($originalClass, $initializer, $init));
     $classGenerator->addMethodFromGenerator(new SetProxyInitializer($initializer));
     $classGenerator->addMethodFromGenerator(new GetProxyInitializer($initializer));
     $classGenerator->addMethodFromGenerator(new InitializeProxy($initializer, $init));
     $classGenerator->addMethodFromGenerator(new IsProxyInitialized($initializer));
 }